PA ADJ INJECTOR 1.8mm 2-3 GPM

PA ADJ INJECTOR 1.8mm 2-3 GPM

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GPM 3 🔧 Commonly Used For: Adjustable Soap Draw on 2-3 GPM Machines A 1.8mm adjustable injector that lets you set exactly how much chem you pull ...
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GPM 3
🔧
Commonly Used For: Adjustable Soap Draw on 2-3 GPM Machines
A 1.8mm adjustable injector that lets you set exactly how much chem you pull on smaller rigs.

PA ADJ Injector 1.8mm - Adjustable Chem Draw for 2-3 GPM Rigs

This PA adjustable injector has a 1.8mm orifice sized for machines running 2-3 GPM. Turn the adjuster and you change how much soap it pulls, so you can go from a rich house wash mix to a light dose without swapping parts. It's in stock at Sun Brite Supply in Gaithersburg, MD and ready to ship.

It's a good match for contractors downstreaming soap on residential work with mid-size machines. Set your draw rate once and you'll get the same mix all day, which keeps your chem costs predictable from job to job.

Where Contractors Use This Adjustable Injector

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Downstream Soap Jobs
Feed house wash mix into the line after the pump on siding, brick, and fence work.
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Adjusting Draw Rate
Dial the draw up for heavy soils, back it down for light rinse work, no part swaps needed.
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In-Stock Ready
Ships within 24 hours from our Gaithersburg, MD warehouse.
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Keeping Chems Off the Pump
Downstream injection means bleach and degreasers never pass through your pump.

Application and Compatibility

Professional pressure washing equipment demands components built for daily commercial abuse. Consumer-grade substitutes fail under the pressures, temperatures, and chemical exposure that contractor rigs operate in. This part is designed for that environment - built to perform under load, day after day. If you're not sure about compatibility, call (301) 519-9274 - we match parts to machines every day.

Contractor-Grade Quality

There's a real difference between professional equipment and consumer-grade alternatives sold at hardware stores. Consumer parts are built to a price point - they work fine for the homeowner who pressure washes their deck once a year. But put those same parts on a commercial rig running 8 hours a day, 5 days a week, and they fail fast. This pressure washer part is built for that daily grind. The materials, tolerances, and construction are designed for thousands of hours of commercial operation. That's why contractors come to Sun Brite Supply instead of buying online from unknown vendors - we carry the brands and specs that working professionals trust.

Installation and Setup

1

Verify Compatibility

Check the specifications against your existing equipment. Thread sizes, pressure ratings, and flow capacities must match for safe operation.

2

Install According to Specs

Follow the manufacturer's installation guidelines. Use appropriate thread sealant on pipe connections. Don't overtighten fittings.

3

Test Under Pressure

After installation, test at low pressure first. Check all connections for leaks before running at full operating pressure.

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Pro Tip: Keep spare parts on your rig. The cost of downtime on a commercial job always exceeds the cost of carrying a few critical replacement components.
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Important: Always verify pressure ratings, thread sizes, and flow specifications match your existing system before installation. Using components rated below your machine's operating pressure creates a safety hazard. When in doubt, call (301) 519-9274 before ordering.

Compatible With

2-3 GPM MachinesDownstream Soap SetupsHouse Wash Rigs

Specifications

Brand PA
Product Type Chemical Injector
Flow Rate 3
Ships From Gaithersburg, MD

Maintenance and Troubleshooting

Keep the part clean and stored in a dry environment when not in use. Exposure to moisture, chemicals, and UV light degrades materials over time. Carry spares on your rig for critical components.

When to Replace vs. Repair

If this pressure washer part shows signs of wear but is still functional, a rebuild kit or replacement seals may extend its service life at a fraction of the full replacement cost. However, if you see cracks, cross-threading, severe corrosion, or complete failure under pressure, replacement is the safer and more economical choice. Call (301) 519-9274 and we'll help you decide. Always follow OSHA equipment safety standards when working with high-pressure equipment.

Frequently Asked Questions

What is an adjustable chemical injector used for?
It draws soap or soft wash chems into the water stream downstream of the pump, and the adjuster lets you control how much it pulls. This 1.8mm PA injector is sized for machines in the 2-3 GPM range, common on residential house wash rigs.
What flow rate does this support?
This product supports 3 GPM. Match this to your machine's output - undersized components restrict flow, while oversized ones won't maintain adequate pressure.
How quickly do you ship orders?
In-stock items ship within 24 hours from our Gaithersburg, MD warehouse. Local customers can arrange same-day counter pickup. Call (301) 519-9274 to confirm availability and get a shipping estimate.
What is your return policy?
Unopened and unused items can be returned within 30 days for store credit. If something arrives damaged or isn't what you expected, call us at (301) 519-9274 and we'll make it right.

Need Help Choosing the Right Part?

30+ years of industry experience. We match parts to machines every day.

☎ (301) 519-9274

Why Buy From Sun Brite Supply?

Sun Brite Supply has served pressure washing contractors from our Gaithersburg, MD location since 2011. We stock the professional-grade parts and equipment you won't find at big box stores. Every in-stock order ships within 24 hours. Local customers can pick up the same day. Call (301) 519-9274 and talk to someone who knows this equipment - not a call center.

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Shipping & Returns: In-stock items ship within 24 hours from Gaithersburg, MD. Same-day counter pickup for local contractors. Unopened items may be returned within 30 days for store credit. Call (301) 519-9274 with questions.